2,6-Lutidine → 3-[7-chloro-1-[(3S)-1-prop-2-enoylpyrrolidin-3-yl]oxyisoquinolin-3-yl]-1,4-dihydro-1,2,4-triazol-5-one

Participants

Reaction Conditions

Reaction Steps

To a mixture of (S)-3-(7-chloro-1-(pyrrolidin-3-yloxy)isoquinolin-3-yl)-1H-1,2,4-triazol-5(4H)-one (180 mg, 0.489 mmol) in DCM (10 mL) was added 2,6-dimethylpyridine (157 mg, 1.467 mmol) at −20° C. followed by the dropwise addition of acryloyl chloride (88 mg, 0.978 mmol, 10 mg/mL in dry DCM). The reaction mixture was warmed to 0° C. over a 30 minute period. The reaction was quenched with MeOH (5 mL) and the mixture concentrated in vacuo. The crude product was purified by preparative HPLC to give the title compound (35 mg, 18%). 1H NMR (400 MHz, DMSO-d6) δ ppm 12.06 (br, 1H), 11.84 (s, 1H), 8.16 (s, 1H), 8.09 (dd, J=1.8 Hz and 8.9 Hz, 1H), 8.03 (s, 1H), 7.83-7.86 (m, 1H), 6.55-6.72 (m, 1H), 6.12-6.19 (m, 2H), 5.63-5.72 (m, 1H), 4.65-4.12 (m, 4H), 2.25-2.42 (m, 2H).

Provenance & Evidence